Remember the days some 20 years ago when the mighty Lions embarked on a history-making first ever season in the top flight under the guidance of John Docherty and Frank McLintock?
It may seem like only yesterday to some younger fans, whose first Millwall experience would have been Teddy and Cas firing Millwall to the First Division for the first time ever.
But for a whole lot more of you, the 1988/9 season was an unforgettable experience - one many thought they would never see.
We want your memories of those great days in Division One (both seasons) - and not just the football either. What were you wearing and listening to back then? Where were you living - what were you doing? Football might have been a constant in your life for these past 20 years but we know there's more to you than that! And we want pictures too please (we'll return them).
So whatever your Millwall memory of that history-making, earth-shaking, mind-blowing year, however funny, fantastic, fraught, mad, sad or simply memorable, please email our programme editor Neil McKeown nmckeown@millwallplc.com and we will share them with everyone in our '20 years on' feature in the matchday programme this season.